已知现在有一个树形控件,请帮我用react+typescript+Ant Design+umi的开发框架实现可以被树形控件引入复用的搜索树的搜索框(注意不要使用React.FC<Prop>= ({treeData}) => {}的形式,treeData是从后端获取的)
时间: 2024-03-12 12:43:47 浏览: 61
一个基于vue3+typescript+ant-design-vue 搭建的基础代码库,有完善的类型系统,帮助快速搭建 vue3
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首先,如果您要实现一个可以被树形控件引入复用的搜索树的搜索框,可以考虑使用Ant Design的Tree和Input组件来实现。具体实现步骤如下:
1. 在您的项目中安装Ant Design和umi:
```bash
npm install antd --save
npm install umi --save-dev
```
2. 创建一个可以接收treeData作为props的组件:
```tsx
import { Tree, Input } from 'antd';
import { TreeProps } from 'antd/lib/tree';
interface SearchTreeProps extends TreeProps {
treeData: any[];
}
const SearchTree: React.FC<SearchTreeProps> = ({ treeData, ...props }) => {
// TODO: 在树形控件中搜索并渲染结果
return (
<>
<Input.Search placeholder="搜索" />
<Tree {...props} />
</>
);
};
export default SearchTree;
```
3. 在组件中使用Input.Search组件实现搜索功能:
```tsx
import React, { useState } from 'react';
import { Tree, Input } from 'antd';
import { TreeProps } from 'antd/lib/tree';
interface SearchTreeProps extends TreeProps {
treeData: any[];
}
const SearchTree: React.FC<SearchTreeProps> = ({ treeData, ...props }) => {
const [expandedKeys, setExpandedKeys] = useState<string[]>([]);
const [searchValue, setSearchValue] = useState<string>('');
const [autoExpandParent, setAutoExpandParent] = useState<boolean>(true);
// 根据搜索关键字过滤树节点
const filterTree = (treeData: any[], searchValue: string): any[] => {
return treeData
.map((node) => {
const title = node.title.toLowerCase();
const match = title.includes(searchValue.toLowerCase());
if (node.children) {
return {
...node,
children: filterTree(node.children, searchValue),
selectable: false,
expanded: autoExpandParent || match
};
}
return {
...node,
selectable: false,
expanded: autoExpandParent || match
};
})
.filter((node) => node.title.toLowerCase().includes(searchValue.toLowerCase()));
};
// 根据输入的搜索关键字更新树形控件展示内容
const handleSearch = (e: React.ChangeEvent<HTMLInputElement>) => {
const value = e.target.value;
const expandedNodes = treeData
.map((node) => {
if (node.title.toLowerCase().includes(value.toLowerCase())) {
return node.key;
}
return null;
})
.filter((key) => key !== null) as string[];
setExpandedKeys(expandedNodes);
setSearchValue(value);
setAutoExpandParent(true);
};
// 保存展开的节点
const handleExpand = (expandedKeys: string[]) => {
setExpandedKeys(expandedKeys);
setAutoExpandParent(false);
};
// 渲染树形控件
const renderTreeNodes = (data: any[]) =>
data.map((item) => {
if (item.children) {
return (
<Tree.TreeNode {...item} key={item.key} dataRef={item}>
{renderTreeNodes(item.children)}
</Tree.TreeNode>
);
}
return <Tree.TreeNode {...item} key={item.key} dataRef={item} />;
});
const filteredTreeData = filterTree(treeData, searchValue);
return (
<>
<Input.Search placeholder="搜索" onChange={handleSearch} />
<Tree
{...props}
expandedKeys={expandedKeys}
onExpand={handleExpand}
autoExpandParent={autoExpandParent}
>
{renderTreeNodes(filteredTreeData)}
</Tree>
</>
);
};
export default SearchTree;
```
以上代码实现了一个可以被树形控件引入复用的搜索树的搜索框,使用了Ant Design的Tree和Input组件,实现了搜索功能。
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